From 8b0a8165cdad0f4133837d753649ef4682e42c3b Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 7 Aug 2024 15:11:40 +0200 Subject: Merging upstream version 6.9.7. Signed-off-by: Daniel Baumann --- fs/zonefs/file.c | 3 +- fs/zonefs/super.c | 173 +++++++++++++++++++++++++++++++----------------------- 2 files changed, 100 insertions(+), 76 deletions(-) (limited to 'fs/zonefs') diff --git a/fs/zonefs/file.c b/fs/zonefs/file.c index dba5dcb62b..3b103715ac 100644 --- a/fs/zonefs/file.c +++ b/fs/zonefs/file.c @@ -125,7 +125,8 @@ static void zonefs_readahead(struct readahead_control *rac) * which implies that the page range can only be within the fixed inode size. */ static int zonefs_write_map_blocks(struct iomap_writepage_ctx *wpc, - struct inode *inode, loff_t offset) + struct inode *inode, loff_t offset, + unsigned int len) { struct zonefs_zone *z = zonefs_inode_zone(inode); diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c index b6e8e7c962..964fa7f240 100644 --- a/fs/zonefs/super.c +++ b/fs/zonefs/super.c @@ -15,12 +15,13 @@ #include #include #include -#include #include #include #include #include #include +#include +#include #include "zonefs.h" @@ -113,7 +114,7 @@ static int zonefs_zone_mgmt(struct super_block *sb, trace_zonefs_zone_mgmt(sb, z, op); ret = blkdev_zone_mgmt(sb->s_bdev, op, z->z_sector, - z->z_size >> SECTOR_SHIFT, GFP_NOFS); + z->z_size >> SECTOR_SHIFT); if (ret) { zonefs_err(sb, "Zone management operation %s at %llu failed %d\n", @@ -470,58 +471,47 @@ static int zonefs_statfs(struct dentry *dentry, struct kstatfs *buf) } enum { - Opt_errors_ro, Opt_errors_zro, Opt_errors_zol, Opt_errors_repair, - Opt_explicit_open, Opt_err, + Opt_errors, Opt_explicit_open, }; -static const match_table_t tokens = { - { Opt_errors_ro, "errors=remount-ro"}, - { Opt_errors_zro, "errors=zone-ro"}, - { Opt_errors_zol, "errors=zone-offline"}, - { Opt_errors_repair, "errors=repair"}, - { Opt_explicit_open, "explicit-open" }, - { Opt_err, NULL} +struct zonefs_context { + unsigned long s_mount_opts; }; -static int zonefs_parse_options(struct super_block *sb, char *options) -{ - struct zonefs_sb_info *sbi = ZONEFS_SB(sb); - substring_t args[MAX_OPT_ARGS]; - char *p; - - if (!options) - return 0; - - while ((p = strsep(&options, ",")) != NULL) { - int token; +static const struct constant_table zonefs_param_errors[] = { + {"remount-ro", ZONEFS_MNTOPT_ERRORS_RO}, + {"zone-ro", ZONEFS_MNTOPT_ERRORS_ZRO}, + {"zone-offline", ZONEFS_MNTOPT_ERRORS_ZOL}, + {"repair", ZONEFS_MNTOPT_ERRORS_REPAIR}, + {} +}; - if (!*p) - continue; +static const struct fs_parameter_spec zonefs_param_spec[] = { + fsparam_enum ("errors", Opt_errors, zonefs_param_errors), + fsparam_flag ("explicit-open", Opt_explicit_open), + {} +}; - token = match_token(p, tokens, args); - switch (token) { - case Opt_errors_ro: - sbi->s_mount_opts &= ~ZONEFS_MNTOPT_ERRORS_MASK; - sbi->s_mount_opts |= ZONEFS_MNTOPT_ERRORS_RO; - break; - case Opt_errors_zro: - sbi->s_mount_opts &= ~ZONEFS_MNTOPT_ERRORS_MASK; - sbi->s_mount_opts |= ZONEFS_MNTOPT_ERRORS_ZRO; - break; - case Opt_errors_zol: - sbi->s_mount_opts &= ~ZONEFS_MNTOPT_ERRORS_MASK; - sbi->s_mount_opts |= ZONEFS_MNTOPT_ERRORS_ZOL; - break; - case Opt_errors_repair: - sbi->s_mount_opts &= ~ZONEFS_MNTOPT_ERRORS_MASK; - sbi->s_mount_opts |= ZONEFS_MNTOPT_ERRORS_REPAIR; - break; - case Opt_explicit_open: - sbi->s_mount_opts |= ZONEFS_MNTOPT_EXPLICIT_OPEN; - break; - default: - return -EINVAL; - } +static int zonefs_parse_param(struct fs_context *fc, struct fs_parameter *param) +{ + struct zonefs_context *ctx = fc->fs_private; + struct fs_parse_result result; + int opt; + + opt = fs_parse(fc, zonefs_param_spec, param, &result); + if (opt < 0) + return opt; + + switch (opt) { + case Opt_errors: + ctx->s_mount_opts &= ~ZONEFS_MNTOPT_ERRORS_MASK; + ctx->s_mount_opts |= result.uint_32; + break; + case Opt_explicit_open: + ctx->s_mount_opts |= ZONEFS_MNTOPT_EXPLICIT_OPEN; + break; + default: + return -EINVAL; } return 0; @@ -543,13 +533,6 @@ static int zonefs_show_options(struct seq_file *seq, struct dentry *root) return 0; } -static int zonefs_remount(struct super_block *sb, int *flags, char *data) -{ - sync_filesystem(sb); - - return zonefs_parse_options(sb, data); -} - static int zonefs_inode_setattr(struct mnt_idmap *idmap, struct dentry *dentry, struct iattr *iattr) { @@ -1065,7 +1048,7 @@ static int zonefs_init_zgroup(struct super_block *sb, zonefs_info(sb, "Zone group \"%s\" has %u file%s\n", zonefs_zgroup_name(ztype), zgroup->g_nr_zones, - zgroup->g_nr_zones > 1 ? "s" : ""); + str_plural(zgroup->g_nr_zones)); return 0; } @@ -1205,7 +1188,6 @@ static const struct super_operations zonefs_sops = { .alloc_inode = zonefs_alloc_inode, .free_inode = zonefs_free_inode, .statfs = zonefs_statfs, - .remount_fs = zonefs_remount, .show_options = zonefs_show_options, }; @@ -1250,9 +1232,10 @@ static void zonefs_release_zgroup_inodes(struct super_block *sb) * sub-directories and files according to the device zone configuration and * format options. */ -static int zonefs_fill_super(struct super_block *sb, void *data, int silent) +static int zonefs_fill_super(struct super_block *sb, struct fs_context *fc) { struct zonefs_sb_info *sbi; + struct zonefs_context *ctx = fc->fs_private; struct inode *inode; enum zonefs_ztype ztype; int ret; @@ -1289,7 +1272,7 @@ static int zonefs_fill_super(struct super_block *sb, void *data, int silent) sbi->s_uid = GLOBAL_ROOT_UID; sbi->s_gid = GLOBAL_ROOT_GID; sbi->s_perm = 0640; - sbi->s_mount_opts = ZONEFS_MNTOPT_ERRORS_RO; + sbi->s_mount_opts = ctx->s_mount_opts; atomic_set(&sbi->s_wro_seq_files, 0); sbi->s_max_wro_seq_files = bdev_max_open_zones(sb->s_bdev); @@ -1300,10 +1283,6 @@ static int zonefs_fill_super(struct super_block *sb, void *data, int silent) if (ret) return ret; - ret = zonefs_parse_options(sb, data); - if (ret) - return ret; - zonefs_info(sb, "Mounting %u zones", bdev_nr_zones(sb->s_bdev)); if (!sbi->s_max_wro_seq_files && @@ -1364,12 +1343,6 @@ cleanup: return ret; } -static struct dentry *zonefs_mount(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) -{ - return mount_bdev(fs_type, flags, dev_name, data, zonefs_fill_super); -} - static void zonefs_kill_super(struct super_block *sb) { struct zonefs_sb_info *sbi = ZONEFS_SB(sb); @@ -1384,22 +1357,72 @@ static void zonefs_kill_super(struct super_block *sb) kfree(sbi); } +static void zonefs_free_fc(struct fs_context *fc) +{ + struct zonefs_context *ctx = fc->fs_private; + + kfree(ctx); +} + +static int zonefs_get_tree(struct fs_context *fc) +{ + return get_tree_bdev(fc, zonefs_fill_super); +} + +static int zonefs_reconfigure(struct fs_context *fc) +{ + struct zonefs_context *ctx = fc->fs_private; + struct super_block *sb = fc->root->d_sb; + struct zonefs_sb_info *sbi = sb->s_fs_info; + + sync_filesystem(fc->root->d_sb); + /* Copy new options from ctx into sbi. */ + sbi->s_mount_opts = ctx->s_mount_opts; + + return 0; +} + +static const struct fs_context_operations zonefs_context_ops = { + .parse_param = zonefs_parse_param, + .get_tree = zonefs_get_tree, + .reconfigure = zonefs_reconfigure, + .free = zonefs_free_fc, +}; + +/* + * Set up the filesystem mount context. + */ +static int zonefs_init_fs_context(struct fs_context *fc) +{ + struct zonefs_context *ctx; + + ctx = kzalloc(sizeof(struct zonefs_context), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + ctx->s_mount_opts = ZONEFS_MNTOPT_ERRORS_RO; + fc->ops = &zonefs_context_ops; + fc->fs_private = ctx; + + return 0; +} + /* * File system definition and registration. */ static struct file_system_type zonefs_type = { - .owner = THIS_MODULE, - .name = "zonefs", - .mount = zonefs_mount, - .kill_sb = zonefs_kill_super, - .fs_flags = FS_REQUIRES_DEV, + .owner = THIS_MODULE, + .name = "zonefs", + .kill_sb = zonefs_kill_super, + .fs_flags = FS_REQUIRES_DEV, + .init_fs_context = zonefs_init_fs_context, + .parameters = zonefs_param_spec, }; static int __init zonefs_init_inodecache(void) { zonefs_inode_cachep = kmem_cache_create("zonefs_inode_cache", sizeof(struct zonefs_inode_info), 0, - (SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD | SLAB_ACCOUNT), + SLAB_RECLAIM_ACCOUNT | SLAB_ACCOUNT, NULL); if (zonefs_inode_cachep == NULL) return -ENOMEM; -- cgit v1.2.3